CBSE Questions for Class 8 Maths Squares And Square Roots Quiz 3 - MCQExams.com

Pythagorean triplet, whose one member is $$16,$$ is$$ ~16,~63,~65.$$
State true or false.
  • True
  • False
The least number which is a perfect square and has $$540$$ as a factor is
  • $$8,100$$
  • $$6,400$$
  • $$4,900$$
  • $$3,600$$
The Pythagorean triplet of number 18 is 18,80,82
State true or false.
  • True
  • False
If $$16^{2}=256,$$ then which of the following are perfect squares ?
  • $$\sqrt{0.00256}$$
  • $$\sqrt{0.0256}$$
  • $$\sqrt{3.69-1.13}$$
  • $$\sqrt{12.8\div 5}$$
There are 500 children in a school. For a P.T. drill they have to stand in such a manner that the number of rows is equal to number of columns. How many children would be left out in this arrangement?
  • 16
  • 20
  • 25
  • 32
By splitting into prime factors, find the square root of $$729$$.
  • $$27$$
  • $$21$$
  • $$17$$
  • $$87$$
By splitting into prime factors, find the square root of $$11025$$.
  • $$1005$$
  • $$105$$
  • $$100$$
  • $$115$$
By splitting into prime factors, find the square root of $$5184$$.
  • $$72$$
  • $$42$$
  • $$52$$
  • $$48$$
Find the smallest number by which 2592 be multiplied so that the product is a perfect square.
  • 2
  • 4
  • 5
  • 8
By splitting into prime factors, find the square root of $$396900$$
  • $$630$$
  • $$450$$
  • $$520$$
  • $$620$$
Find the square root of $$324$$.
  • $$18$$
  • $$16$$
  • $$28$$
  • $$24$$
Find the smallest number by which 12748 be multiplied so that the product is a perfect square.
  • 3187
  • 7814
  • 4577
  • 1842
The square root of $$245$$ correct to two places of decimal is $$15.65.$$
  • True
  • False
The square root of 82.6 correct to two places of decimal is 9.09
State true or false.
  • True
  • False
Find the square root of $$4761$$.
  • $$69$$
  • $$59$$
  • $$49$$
  • $$48$$
The square root of $$15129$$ is
  • $$123$$
  • $$223$$
  • $$113$$
  • $$213$$
The square root of $$34969$$ is:
  • $$177$$
  • $$187$$
  • $$197$$
  • $$157$$
State true or false:
The square root of 56 correct to three decimal places is 7.483.
  • True
  • False
Find the least number that must be subtracted from $$23497$$ so that the resulting number is a perfect square. 
  • 84
  • 48
  • 88
  • 15
Find the square root of $$\displaystyle 6 \frac{7}{8}$$ correct to two decimal places 
  • $$2.62$$
  • $$2.61$$
  • $$2.63$$
  • $$2.6$$
The square root of 0.065 correct to three places of decimal is 0.255
State true or false
  • True
  • False
State true or false:
The square root of 5.2005 correct to two decimal places is 2.28.
  • True
  • False
Squares of which of the following numbers will have 1(one) at their unit's place :
  • 57
  • 81
  • 139
  • 73
  • 64
  • 831

State true or false:

The square root of 0.008 correct to three decimal places is 0.089.
  • True
  • False
Find the square root of $$\displaystyle 1 \frac{5}{16}$$  correct to two decimal places
  • $$1.14$$
  • $$1.15$$
  • $$1.65$$
  • $$1.12$$
Seeing the value of the digit at unit's place, state which of the following can be square of a number :
  • $$3051$$
  • $$2332$$
  • $$5684$$
  • $$6908$$
  • $$50699$$
  • $$920546$$
State true or false.
The square root of 0.602 correct to two decimal places is 0.78.
  • True
  • False
If the square ends with $$5,$$ then the number has ___ at the units place.
  • $$7$$
  • $$6$$
  • $$5$$
  • $$1$$
Which of the following numbers will not have 6 at the unit's place in their squares?
  • 35
  • 23
  • 64
  • 76
  • 94
  • 42
  • 98
Consider the Following values of the three given number $$\displaystyle \sqrt{103},$$ $$\displaystyle \sqrt{99.35},$$ $$\displaystyle \sqrt{102.20},$$
1.10.1489 (approx,)
2.10.109(approx,)
3.9.967 (approx,)
The correct sequence of the these values matching with the above number is:
  • 1, 2, 3
  • 1, 3, 2
  • 2, 3, 1
  • 3, 1, 2
0:0:1


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